EP0212878A1
Expired / Lapsed
EP
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Plate-type cross-flow heat exchanger
Assignee: HEATRIC Pty Ltd
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Filing: 1986-07-30
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Granted: —
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Expires: 2006-07-30
Abstract
Abstract A plate-type cross-flow heat exchanger having a core (20) which is constituted by a stack of flat metal plates (23 and 24) which are diffusion bonded in face-to-face contact. Some of the plates (23) are formed with a first group of channels (25) which extend between a first pair of opposed edges (26A and 268) of the plates, and others of the plates (24) are formed with a second group of orthogonally disposed channels (27) which extend between a second pair of opposed edges (28A and 28B) of the plates. First and second headers (35 and 36) are bonded to opposite edges of the core and are in fluid passage communication with the first group of channels (25), and conduits (37) are provided for directing a first fluid to and from the first group of channels (25) by way of the first and second headers (35 and 36). A vessel (51 or 54 or 55) contains the core (20) and the headers (35, 36), with the interior of the vessel being in fluid passage communication with the second group of channels (27) in the core. A conduit (39 or 52) is provided for admitting a second fluid to the second group of channels in the core and to the interior of the vessel (51 or 54 or 55) whereby, in passing through the vessel, the second fluid contacts the exterior surface of the first and second headers (35 and 36) within the vessel. A further conduit (53 or 57) is provided for conveying the second fluid from the interior of the vessel (51 or 54 or 55) after it has contacted the headers (35 and 36).
Inventors
- 👤 Anthony Matthew Johnson
- 👤 Graham Robert Mcbride
- 👤 Colin Roland Watson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 20:08
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0031; F28D9/0037
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
331 words
A heat exchanger which comprises: a core (20) which is constituted by a stack of flat metal plates (23 and 24) which are diffusion bonded together in face-to-face contact, at least some of the plates being formed with a first group of channels (25) which extend between a first pair of opposed edges (26A and 26B) of the plates, and at least some of the plates being formed with a second group of channels (27) which are transversely disposed with respect to the first group, which extend between a second pair of opposed edges (28A and 28B) of the plates and which do not communicate with the first group of channels, the channels (25 and 27) in each plate being formed within the thickness of the plate and having a depth falling within the range of 0.2 mm to 1.5 mm,; first and second headers (35 and 36) bonded to opposite edges of the core (20) and in fluid passage communication with the first group of channels (25); and means (37) for directing a first fluid to and from the first group of channels (25) by way of the first and second headers (35 and 36); characterised in that a vessel (51, 54 or 55) contains the core (20) and the headers (35 and 36). with the interior of the vessel being in fluid passage communication with the second group of channels (27) in the core (20), in that means (39. 52 or 54) are provided for admitting a second fluid to the second group of channels (27) in the core (20) and to the interior of the vessel (51, 54 or 55) whereby, in passing through the vessel, the second fluid contacts the exterior surface of the first and second headers (35 and 36) within the vessel, and in that means (53 or 57) are provided for conveying the second fluid from the interior of the vessel (51, 54 or 55) after it has contacted the headers (35 and 36).
Claim 2
Dependent Claim
331 words
A heat exchanger which comprises: a core (20) which is constituted by a stack of flat metal plates (23 and 24) which are diffusion bonded together in face-to-face contact, at least some of the plates being formed with a first group of channels (25) which extend between a first pair of opposed edges (26A and 26B) of the plates, and at least some of the plates being formed with a second group of channels (27) which are transversely disposed with respect to the first group, which extend between a second pair of opposed edges (28A and 28B) of the plates and which do not communicate with the first group of channels, the channels (25 and 27) in each plate being formed within the thickness of the plate and having a depth falling within the range of 0.2 mm to 1.5 mm,; first and second headers (35 and 36) bonded to opposite edges of the core (20) and in fluid passage communication with the first group of channels (25); and means (37) for directing a first fluid to and from the first group of channels (25) by way of the first and second headers (35 and 36); characterised in that a vessel (51, 54 or 55) contains the core (20) and the headers (35 and 36). with the interior of the vessel being in fluid passage communication with the second group of channels (27) in the core (20), in that means (39. 52 or 54) are provided for admitting a second fluid to the second group of channels (27) in the core (20) and to the interior of the vessel (51, 54 or 55) whereby, in passing through the vessel, the second fluid contacts the exterior surface of the first and second headers (35 and 36) within the vessel, and in that means (53 or 57) are provided for conveying the second fluid from the interior of the vessel (51, 54 or 55) after it has contacted the headers (35 and 36).
Claim 3
Dependent Claim
50 words
The heat exchanger as claimed in claim 1; further characterised in that the second group of channels (27) communicate directly with the interior of the vessel (51 or 54), whereby the second fluid will pass into and through the core (20) from the interior of the vessel (51 or 54).
Claim 4
Dependent Claim
40 words
The heat exchanger as claimed in claim 1 or claim 2; further characterised in that the core (20), together with the first and second headers (35 and 36), forms a baffle (Fig.ll) which divides the vessel (54) into two parts.
Claim 5
Dependent Claim
72 words
The heat exchanger as claimed in claim 1; further characterised in that a third header (38) is bonded to one edge of the core (20) and is in fluid passage communication with the second group of channels (27) in the core (20), and in that a conduit (39) is provided for directing the second fluid into or from the vessel (55) by way of the third header (38) and the core (20).
Claim 6
Dependent Claim
82 words
The heat exchanger as claimed in any one of the preceding claims; further characterised in that the core (20) is constituted by two stacks (45 and 46) of the flat metal plates, each stack incorporting plates (23 and 24) which are formed with the first and second groups of channels (25 and 27), and in that the two stacks (45 and 46) are joined by spacer bars (47) to permit fluid flow between one group of corresponding channels in the two stacks.
Claim 7
Dependent Claim
85 words
The heat exchanger as claimed in any one of claims 1 to 5 further characterised in that the core (20) is constituted by at least two stacks (48) of the flat metal plates (49 and 50), each stack (48) incorporating plates which are formed with the first and second groups of channels (25 and 27), and in that the stacks (48) are connected end-to-end such that the first and second groups of channels (25 and 27) in the respective stacks lie parallel to one another.
Claim 8
Dependent Claim
36 words
The heat exchanger as claimed in any one of the preceding claims further characterised in that the channels (27) of the second group are disposed orthogonally with respect to the channels (25) of the first group.
Claim 9
Dependent Claim
31 words
The heat exchanger as claimed in any one of the preceding claims further characterised in that the channels (25 and 27) in the first and/or second group follow a non-linear path.
Claim 10
Dependent Claim
65 words
The heat exchanger as claimed in any one of the preceding claims further characterised in that the first group of channels (25) are formed in one set of the plates (23 or 49) and the second group of channels (27) are formed in a second set of the plates (24 or 50). with the plates of the respective sets being alternatingly placed in the stack.
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